<form nz-form [formGroup]="group" (ngSubmit)="submit()">
    <nz-form-item>
        <nz-form-label [nzSm]="6" [nzXs]="24" nzRequired nzFor="old">原密码</nz-form-label>
        <nz-form-control [nzSm]="14" [nzXs]="24" nzErrorTip="原密码不可为空">
            <input nz-input type="password" formControlName="old" placeholder=""/>
        </nz-form-control>
    </nz-form-item>

    <nz-form-item>
        <nz-form-label [nzSm]="6" [nzXs]="24" nzRequired nzFor="new">新密码</nz-form-label>
        <nz-form-control [nzSm]="14" [nzXs]="24" nzErrorTip="新密码不可为空">
            <input nz-input type="password" formControlName="new"/>
        </nz-form-control>
    </nz-form-item>

    <nz-form-item>
        <nz-form-label [nzSm]="6" [nzXs]="24" nzRequired nzFor="repeat">重复密码</nz-form-label>
        <nz-form-control [nzSm]="14" [nzXs]="24" nzErrorTip="请再次输入新密码">
            <input nz-input type="password" formControlName="repeat"/>
        </nz-form-control>
    </nz-form-item>
</form>
